Ms. Westerson will discuss her latest mystery, Shadow of the Alchemist, and will show off her cache of medieval weaponry.

In The Shadow of the Alchemist, knight-turned-detective Guest is sought out by Nicholas Flamel, an absent-minded alchemist. Both Flamel's wife and his apprentice are missing, and he wants Guest to find them and bring them home.

Before Guest even begins looking, he discovers that Flamel's house has been ransacked, his assistant murdered with a ransome note for the kidnapped wife pinned to his chest. The kidnappers want the Philosopher's Stone, which is reputed to turn lead into gold and create the elixir of life. They will trade the wife's safe return for it.